<template>
  <div style="display: inline-block;" v-if="model == 'text'">
    <div @click="dialogVisible = true" style="color: #1890ff;text-decoration: underline;cursor: pointer;">{{ name }}</div>
    <el-dialog :title="$t('message.system.preview')" :visible.sync="dialogVisible" width="30%"
      :close-on-click-modal="false">
      <div class="ImageCickPreviewDia" v-for="(item, index) in realSrcList" :key="index">
        <el-image style="width: 80%; height: 400px" :src="item" :preview-src-list="realSrcList"
          :initial-index="index"></el-image>
      </div>

    </el-dialog>
  </div>
  <div v-else>
    <el-image :src="`${realSrc}`" fit="cover" :style="`width:${realWidth};height:${realHeight};`"
      :preview-src-list="realSrcList">
      <div slot="error" class="image-slot">
        <i class="el-icon-picture-outline"></i>
      </div>
    </el-image>
  </div>
</template>

<script>
import { isExternal } from "@/utils/validate";

export default {
  name: "OssImagePreview",
  props: {
    src: {
      type: String,
      default: ""
    },
    width: {
      type: [Number, String],
      default: ""
    },
    height: {
      type: [Number, String],
      default: ""
    },
    model: {
      type: String,
      default: "image"
    },
    name: {
      default: '预览',
      type: String
    },
    preview: {
      default: false,
      type: Boolean
    }
  },
  data() {
    return {
      dialogVisible: false,
    }
  },
  computed: {
    realSrc() {
      if (!this.src) {
        return;
      }
      let real_src = this.src.split(",")[0];
      if (isExternal(real_src)) {
        return real_src;
      }
      return this.$yun.getPreviewUrl(real_src)
    },
    realSrcList() {
      if (!this.src) {
        return;
      }
      let real_src_list = this.src.split(",");
      let srcList = [];
      real_src_list.forEach(item => {
        if (isExternal(item)) {
          return srcList.push(item);
        }
        return srcList.push(this.$yun.getPreviewUrl(item));
      });
      return srcList;
    },
    realWidth() {
      return typeof this.width == "string" ? this.width : `${this.width}px`;
    },
    realHeight() {
      return typeof this.height == "string" ? this.height : `${this.height}px`;
    }
  },
};
</script>

<style lang="scss" scoped>
.el-image {
  border-radius: 5px;
  background-color: #ebeef5;
  box-shadow: 0 0 5px 1px #ccc;

  ::v-deep .el-image__inner {
    transition: all 0.3s;
    cursor: pointer;

    &:hover {
      transform: scale(1.2);
    }
  }

  ::v-deep .image-slot {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    color: #909399;
    font-size: 30px;
  }
}
.ImageCickPreviewDia {
    text-align: center;
}
</style>
